Sovereign L6-4.0L (1991)
Idle Up Control Valve: Testing and Inspection
Idle Air Components
1.
Disconnect supplementary air valve harness connector from main harness. Do not apply voltage to main harness.
2.
Ground yellow/green wire in air valve connector.
3.
Apply 12 volts to white/brown wire in air valve connector.
4.
Valve is normally closed and should open when voltage is applied.